Says that Town Criers 1-6 appeared in White Dwarf, and Aenur was featured in Town Cryer 3 (which was included in WD 240 - Jan 2000).

Hope this helps. You can download TC3 here and perhaps at the TC thread on this forum, although there are some omissions.

Edit: TC3 download just finished for me, and it doesn't include any further info about Aenur. It just shows an Aenur which Matthew Parkes painted up. It's a red and white theme, which he talks about. "Because of the myster surrounding Aenur's past, I painted him in clolors that are not associated with any particular Elven race."